FTS MAXI-COOL - User Manual

Questions and Answers

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nowensAug 2, 2025
Why is my FTS Chiller unit not cooling properly?
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  Christopher WestAug 2, 2025
  If your FTS Chiller unit isn't cooling properly, first check if the temperature setting is above the fluid temperature and adjust it accordingly. If the fluid's viscosity is too high for the intended temperature range, consider changing the fluid. Ensure the ambient temperature isn't too high, ideally around 72°F/22°C. Finally, verify that the plumbing is correctly connected, with the "LIQUID OUT" port connected to the inlet of the system being cooled and the "LIQUID IN" port to the outlet.
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Ann CallahanAug 6, 2025
What to do if the pump will not start on my FTS Chiller?
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  Raymond SmithAug 6, 2025
  If the pump on your FTS Chiller won't start, there are several things to check. First, ensure that the power is properly connected by having an electrician check the power connections. Also, verify that the breaker at the wall is in the "on" position. Make sure the pump is primed. Check if the impeller is jammed, which can happen if the fluid freezes. If the pump motor has overheated (it has thermal overload protection and will restart when cooled), ensure the fluid viscosity remains less than 20 centistokes. As a last resort, if none of these solutions work, the pump motor may have burned out, and you should contact the factory for a new motor.
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Jonathan DavisAug 10, 2025
How to troubleshoot an FTS Chiller unit that will not start?
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  Frank MorseAug 10, 2025
  If your FTS Chiller unit will not start, begin by ensuring the power is properly connected by having an electrician check the power connections. Next, verify that the breaker at the wall is in the "on" position. Finally, have a qualified person check and replace the fuse if it has blown.
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Renee FryAug 15, 2025
Why refrigeration will not start on my FTS Chiller?
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  Renee ShieldsAug 15, 2025
  If the refrigeration on your FTS Chiller isn't starting, make sure the “0/1" switch is pressed; the fluid pump should start first, followed by the refrigeration a few seconds later. Also, ensure the compressor is receiving adequate voltage; if it's not within +/- 5% of the system's rated voltage, contact an electrician to correct it.
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Marcus BerryAug 19, 2025
What causes inadequate fluid flow in an FTS Chiller?
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  courtneyleAug 19, 2025
  If the fluid flow in your FTS Chiller is inadequate, start by checking if the fluid's viscosity is too high for the intended temperature range and change it to a fluid with lower viscosity if needed. If using a high-pressure pump (like HPP2), inspect the pump screen for blockages by removing the insulation and the large nut on the pump housing. Ensure the ball valve is open and inspect plumbing lines for restrictions or breaks, repairing as necessary. Lastly, remove the pump and check the impeller for damage, contacting the factory for a replacement if needed, and determine/correct the cause of the damage.
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Tracy FlemingAug 23, 2025
Why is the refrigeration cutting out on my FTS Chiller?
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  Cheryl EvansAug 25, 2025
  If the refrigeration on your FTS Chiller is cutting out, it could be due to a few reasons. The ambient temperature might be too warm; the unit is designed for operation in an environment of 72°F/22°C, and temperatures over 80°F/27°C may cause the compressor to overheat. Check the fan for rotation, AC supply, blockage, or excessive dirt/dust. Also, the condenser might be blocked, so ensure the finned surface is at least 6" away from the wall and free from dust.
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diazcarlAug 28, 2025
Why is the pump making loud noise on my FTS Chiller?
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  Heather JamesAug 28, 2025
  If the pump on your FTS Chiller is making loud noises, it could be due to a blocked filter screen (on high-pressure pumps only). A qualified technician can remove the filter screen by cutting back the insulation and removing the large nut on the pump housing. Also, check for fluid freezing or icing; ensure there is no ice in the fluid and that straight water is not used below 5°C. For lower temperature operation, mix with glycol.